Joseph j



il. lul-illu a lnmmmmml ff@ if? 7 Furnace fra/5- JTMMM- @uitrit tetes .iQ-stent' @titre BASKET-estre ron' renuncias.

'titre Srlgtinl'e nient tu in tigen tttet gnent tunneling um ni iterate.

TO ALL WHOM IT MAY OONCERN:

Be it known that I, JOSEPH J.HEINDL, o f '11 Park'RoW, New York, in the county and State of New `York, have invented a new and useful lmproved Gas-Generating Basket-Grate; and I do hereby declare that the following is a full and clear and exact description thereof, which will enable' those skilled in theort to make and use the saule, reference being had .toY the accompanying drawing, forming part of this specification, in which drawing- Figure 1 represents a longitudinal vertical section of this invention.

4 Figure 2 is a. transverse section of the same. y

Figure 3 is a horizontal section theeofl r Similar letters of reference indicute'correspondi'ng parts.

This invention relates'to an improvement ou'the patent, 42,816, granted to me as the sole assignee of Ferdinand Braun, on un improvement in furnaces for burning' sawdust, tite., and describedA in the wordsof seid Braun, as follows: I

This invention consists in the arrangement of a drying-room situated'above the fireplace, and provided with a convex or-roof-shaped bottom, and h oles or channels Yleading down to the grate, in such a manner that coul-dust, waste peat', saw-dust, spent tan, or other` similar materials, when thrown in said heating-room, will readily dry and feed themselves automatically to the grate.

, It consists, further, in the employment or use of a basket-grate composed oi' 'a level bottom or centre-piece' and inclined side-pieces, Whichextend up close under the holes orchannels leading down from the drying-room, in such a nia-nner that by raking out theslake from the ilet centrepiece of the grate, a. fresh supply of fuel is .allowed to descend over the inclined side-pieoes, without admitting-any air from above', and thereby the furnace is rendered self-feeding. ,y

The basket-grate shown and described in the patent above referred to, isconstructed of three sections,

which may consist of perforated or slotted'plctes, or a'series of grate-bars, according to the nature ofthe fuelvv to be consumed; and I 'have found that by making the inclined'sides of the basket-grate of` such perforated plates or grate-bars,the combustion is too intense, and no flame is'created, which is abselutely'necessary for a great many technical operations.V i Y i Thesediliculties are avoided by mypresent improvement, which consists in making the inclined sides of the grate partially or wholly closed, and of a had conductor of heat, so that the'fuel, in descending, is highly heated, andl a large quantity of carbonio-acid gas Yis formed. Thisgas passes off into the arch, Where it is mixed with the' requisite quantity of atmosphericeir, so ns to consume the same and produce an intense llame, v which is required for a great many technical operations, such as, for instance, the roasting of ores, melting of.

glass, Ste. C represents a basket-grate, which is composed of a level section, b, and two inclined sections, a c,

` as clearlyshown in 2 of theldrawing. Said grate iscovered by the' redector E, and thefuelv is fed to it through the channels d, over Ythe inclined sections a c. These sections, instead of being made of perforated plates or a series of grate-bars, are partially or Wholly closed, so that the fuel,l which, in descending over them, is highly heated, is, during that period, not supplied with therequisitc quantity of atmospheric air to support complete combustion, and consequently a large quantity of carbonio-*oxide gas is formed. The carbonicoxide gas which is thus disengaged from t-he'fu'el, passes off through the aperture F into thearch, where it is mixedwith the requisite quantity of atmospheric air to form carbonio-acid gas, ,and as theearbonic.oxide is thus consumed, n very intense flame is produced. The gases which are disengaged from the fuel can be conducted a considerable distance from' the grate before they are consu-med; and with a proper supply of atmospheric air all the gases which disengage themselves from the fuelcan be consumed, and acomparatively small quantity of fuel is capable. to produce an intense heat; and furthermore, by heating the fuel on itsdescent over the inclined sides-oi` the grate, while the air is shut off, the formation of slakes and clinkers is prevented, and the fire can be kept clean without difficulty.

Ido not claim as my invention the basket-grate and reiiector, such having been described in Letters Patent,

42,816, as above stated; but

What I claim as neinfmd desire to v@veure by Letters Patent, is?d The basket-grate C, having its sides a: c constructed of inclined plates, partially or Wholly closed, substantially as described. JOSEPH J HEINDL l Witnesses:

W. HAUFF,

D. B. CHILDS. 

